Some scientists propose that before modern cells arose, RNA dominated the world. Which statement below, if true, would provide evidence for this hypothesis?

If you made a change in the promoter sequence in the dna that inactivates the promoter, what would happen at the rna level? the mutation of the dna would be carried through to the rna sequence.

How old is the average Mum

Non-woody plants, like this lily, are able to remain upright due to turgor. Turgor is caused by

What would happen if the cell membrane were not selectively permeable.

Why is a nucleus found in both plant and animal cells?

A primigravida at 38 weeks' gestation presents to the clinic with a blood pressure of 142/94, edema in all extremities, and a weight gain of 5 lb (2.3 kilograms) since the previous checkup 1 week ago.

What factor can cause two populations to become reproductively isolated?

Which structure (s) of the female reproductive system contain (s) glands that lubricate the vaginal entrance?

The energy yield from the breakdown of a single molecule of glucose does not depend upon a. whether some of the energy of the H⁺ gradient is used for work other than ATP production. b. the supply of carbon dioxide. c.

1. Benedict's solution is the testing reagent for monosaccharides in experiment 1. Why were you instructed to heat the Benedict's solution by itself in test tube 1?